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Finding the Fourth Proportional to 6,775.89, 9,350.79 and 3,791.76

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Solution

The fourth proportional to 6,775.89, 9,350.79 and 3,791.76 is: 5,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,775.89 : 9,350.79 = 3,791.76 : x
  2. Step 2: Convert to fraction form
    6,775.89/9,350.79 = 3,791.76/x
  3. Step 3: Cross multiply
    6,775.89x = 9,350.79 × 3,791.76
  4. Step 4: Simplify right side
    6,775.89x = 35,455,951.49
  5. Step 5: Solve for x
    x = 35,455,951.49/6,775.89
  6. Step 6: Final answer
    x = 5,232.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.